#!/usr/bin/env perl
use strict;
use warnings FATAL => 'all';
use Getopt::Long;

my (
$command,   $ssh_user,  $orig_master_host,
$orig_master_ip,$orig_master_port, $new_master_host, $new_master_ip,$new_master_port
);

my $vip = 'virtual IP address/virtual IP network segment';
my $key = '1';
my $ssh_start_vip = "/sbin/ifconfig network_card:$key $vip";
my $ssh_stop_vip = "/sbin/ifconfig network_card:$key down";

GetOptions(
'command=s'     => \$command,
'ssh_user=s'        => \$ssh_user,
'orig_master_host=s'    => \$orig_master_host,
'orig_master_ip=s'  => \$orig_master_ip,
'orig_master_port=i'    => \$orig_master_port,
'new_master_host=s' => \$new_master_host,
'new_master_ip=s'   => \$new_master_ip,
'new_master_port=i' => \$new_master_port,
);

exit &main();

sub main {
print "\n\nIN SCRIPT TEST====$ssh_stop_vip==$ssh_start_vip===\n\n";
if ( $command eq "stop" || $command eq "stopssh" ) {
my $exit_code = 1;
eval {
print "Disabling the VIP on old master: $orig_master_host \n";
&stop_vip();
$exit_code = 0;
};
if ($@) {
warn "Got Error: $@\n";
exit $exit_code;
}
exit $exit_code;
}

elsif ( $command eq "start" ) {
my $exit_code = 10;
eval {
print "Enabling the VIP - $vip on the new master - $new_master_host \n";
&start_vip();
$exit_code = 0;
};

if ($@) {
warn $@;
exit $exit_code;
}
exit $exit_code;
}

elsif ( $command eq "status" ) {
print "Checking the Status of the script.. OK \n";
exit 0;
}
else {
&usage();
exit 1;
}
}

sub start_vip() {
`ssh $ssh_user\@$new_master_host \" $ssh_start_vip \"`;
}
sub stop_vip() {
return 0 unless ($ssh_user);
`ssh $ssh_user\@$orig_master_host \" $ssh_stop_vip \"`;
}
sub usage {
print
"Usage: master_ip_failover --command=start|stop|stopssh|status --orig_master_host=host --orig_master_ip=ip --orig_master_port=port --new_master_host=host --new_master_ip=ip --new_master_port=port\n";
}
